diff options
Diffstat (limited to 'lib/dialyzer/test/race_SUITE_data/src/whereis_diff_modules_twice')
2 files changed, 32 insertions, 0 deletions
diff --git a/lib/dialyzer/test/race_SUITE_data/src/whereis_diff_modules_twice/whereis_diff_modules1_twice.erl b/lib/dialyzer/test/race_SUITE_data/src/whereis_diff_modules_twice/whereis_diff_modules1_twice.erl new file mode 100644 index 0000000000..92f2cb1fbc --- /dev/null +++ b/lib/dialyzer/test/race_SUITE_data/src/whereis_diff_modules_twice/whereis_diff_modules1_twice.erl @@ -0,0 +1,21 @@ +%% This tests that the race condition detection between whereis/register +%% is robust w.r.t. having multiple calls in separate modules. + +-module(whereis_diff_modules1_twice). +-export([start/2]). + +start(AnAtom, Fun) -> + case whereis(AnAtom) of + undefined -> + Pid1 = spawn(Fun), + whereis_diff_modules2_twice:race(AnAtom, Pid1), + case whereis(AnAtom) of + undefined -> + Pid2 = spawn(Fun), + whereis_diff_modules2_twice:race_again(AnAtom, Pid2); + P when is_pid(P) -> + true + end; + P when is_pid(P) -> + true + end. diff --git a/lib/dialyzer/test/race_SUITE_data/src/whereis_diff_modules_twice/whereis_diff_modules2_twice.erl b/lib/dialyzer/test/race_SUITE_data/src/whereis_diff_modules_twice/whereis_diff_modules2_twice.erl new file mode 100644 index 0000000000..390c0dcc94 --- /dev/null +++ b/lib/dialyzer/test/race_SUITE_data/src/whereis_diff_modules_twice/whereis_diff_modules2_twice.erl @@ -0,0 +1,11 @@ +%% This tests that the race condition detection between whereis/register +%% is robust w.r.t. having the calls in separate modules. + +-module(whereis_diff_modules2_twice). +-export([race/2, race_again/2]). + +race(Atom, Pid) -> + register(Atom, Pid). + +race_again(Atom, Pid) -> + register(Atom, Pid). |